4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
37 #include <sys/times.h>
41 #include <sys/ioctl.h>
42 #include <sys/resource.h>
43 #include <sys/socket.h>
44 #include <netinet/in.h>
46 #include <arpa/inet.h>
49 #include <sys/select.h>
53 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
55 #include <sys/sysctl.h>
64 #include <linux/ppdev.h>
65 #include <linux/parport.h>
69 #include <sys/ethernet.h>
70 #include <sys/sockio.h>
71 #include <netinet/arp.h>
72 #include <netinet/in_systm.h>
73 #include <netinet/ip.h>
74 #include <netinet/ip_icmp.h> // must come after ip.h
75 #include <netinet/udp.h>
76 #include <netinet/tcp.h>
84 #if defined(__OpenBSD__)
88 #if defined(CONFIG_VDE)
89 #include <libvdeplug.h>
97 #if defined(__APPLE__) || defined(main)
99 int qemu_main(int argc, char **argv, char **envp);
100 int main(int argc, char **argv)
102 return qemu_main(argc, argv, NULL);
105 #define main qemu_main
107 #endif /* CONFIG_SDL */
111 #define main qemu_main
112 #endif /* CONFIG_COCOA */
117 #include "hw/boards.h"
119 #include "hw/pcmcia.h"
124 #include "hw/watchdog.h"
125 #include "hw/smbios.h"
128 #include "hw/loader.h"
131 #include "net/slirp.h"
136 #include "qemu-timer.h"
137 #include "qemu-char.h"
138 #include "cache-utils.h"
140 #include "blockdev.h"
141 #include "block-migration.h"
143 #include "audio/audio.h"
144 #include "migration.h"
147 #include "qemu-option.h"
148 #include "qemu-config.h"
149 #include "qemu-options.h"
150 #include "qmp-commands.h"
151 #include "main-loop.h"
153 #include "fsdev/qemu-fsdev.h"
158 #include "qemu_socket.h"
160 #include "slirp/libslirp.h"
163 #include "trace/control.h"
164 #include "qemu-queue.h"
166 #include "arch_init.h"
168 #include "ui/qemu-spice.h"
171 //#define DEBUG_SLIRP
173 #define DEFAULT_RAM_SIZE 128
175 #define MAX_VIRTIO_CONSOLES 1
177 static const char *data_dir;
178 const char *bios_name = NULL;
179 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
180 DisplayType display_type = DT_DEFAULT;
181 int display_remote = 0;
182 const char* keyboard_layout = NULL;
184 const char *mem_path = NULL;
186 int mem_prealloc = 0; /* force preallocation of physical target memory */
189 NICInfo nd_table[MAX_NICS];
191 static int rtc_utc = 1;
192 static int rtc_date_offset = -1; /* -1 means no change */
193 QEMUClock *rtc_clock;
194 int vga_interface_type = VGA_NONE;
195 static int full_screen = 0;
197 static int no_frame = 0;
200 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
201 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
202 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
203 int win2k_install_hack = 0;
212 const char *vnc_display;
214 int acpi_enabled = 1;
220 int graphic_rotate = 0;
221 uint8_t irq0override = 1;
222 const char *watchdog;
223 QEMUOptionRom option_rom[MAX_OPTION_ROMS];
225 int semihosting_enabled = 0;
227 const char *qemu_name;
230 unsigned int nb_prom_envs = 0;
231 const char *prom_envs[MAX_PROM_ENVS];
233 uint8_t *boot_splash_filedata;
234 int boot_splash_filedata_size;
235 uint8_t qemu_extra_params_fw[2];
237 typedef struct FWBootEntry FWBootEntry;
240 QTAILQ_ENTRY(FWBootEntry) link;
246 QTAILQ_HEAD(, FWBootEntry) fw_boot_order = QTAILQ_HEAD_INITIALIZER(fw_boot_order);
249 uint64_t node_mem[MAX_NODES];
250 uint64_t node_cpumask[MAX_NODES];
252 uint8_t qemu_uuid[16];
254 static QEMUBootSetHandler *boot_set_handler;
255 static void *boot_set_opaque;
257 static NotifierList exit_notifiers =
258 NOTIFIER_LIST_INITIALIZER(exit_notifiers);
260 static NotifierList machine_init_done_notifiers =
261 NOTIFIER_LIST_INITIALIZER(machine_init_done_notifiers);
263 static int tcg_allowed = 1;
267 enum xen_mode xen_mode = XEN_EMULATE;
268 static int tcg_tb_size;
270 static int default_serial = 1;
271 static int default_parallel = 1;
272 static int default_virtcon = 1;
273 static int default_monitor = 1;
274 static int default_vga = 1;
275 static int default_floppy = 1;
276 static int default_cdrom = 1;
277 static int default_sdcard = 1;
283 { .driver = "isa-serial", .flag = &default_serial },
284 { .driver = "isa-parallel", .flag = &default_parallel },
285 { .driver = "isa-fdc", .flag = &default_floppy },
286 { .driver = "ide-cd", .flag = &default_cdrom },
287 { .driver = "ide-hd", .flag = &default_cdrom },
288 { .driver = "ide-drive", .flag = &default_cdrom },
289 { .driver = "scsi-cd", .flag = &default_cdrom },
290 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
291 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
292 { .driver = "virtio-serial", .flag = &default_virtcon },
293 { .driver = "VGA", .flag = &default_vga },
294 { .driver = "cirrus-vga", .flag = &default_vga },
295 { .driver = "vmware-svga", .flag = &default_vga },
296 { .driver = "isa-vga", .flag = &default_vga },
297 { .driver = "qxl-vga", .flag = &default_vga },
300 static void res_free(void)
302 if (boot_splash_filedata != NULL) {
303 g_free(boot_splash_filedata);
304 boot_splash_filedata = NULL;
308 static int default_driver_check(QemuOpts *opts, void *opaque)
310 const char *driver = qemu_opt_get(opts, "driver");
315 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
316 if (strcmp(default_list[i].driver, driver) != 0)
318 *(default_list[i].flag) = 0;
323 /***********************************************************/
326 static RunState current_run_state = RUN_STATE_PRELAUNCH;
331 } RunStateTransition;
333 static const RunStateTransition runstate_transitions_def[] = {
335 { RUN_STATE_DEBUG, RUN_STATE_RUNNING },
337 { RUN_STATE_INMIGRATE, RUN_STATE_RUNNING },
338 { RUN_STATE_INMIGRATE, RUN_STATE_PRELAUNCH },
340 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_PAUSED },
341 { RUN_STATE_INTERNAL_ERROR, RUN_STATE_FINISH_MIGRATE },
343 { RUN_STATE_IO_ERROR, RUN_STATE_RUNNING },
344 { RUN_STATE_IO_ERROR, RUN_STATE_FINISH_MIGRATE },
346 { RUN_STATE_PAUSED, RUN_STATE_RUNNING },
347 { RUN_STATE_PAUSED, RUN_STATE_FINISH_MIGRATE },
349 { RUN_STATE_POSTMIGRATE, RUN_STATE_RUNNING },
350 { RUN_STATE_POSTMIGRATE, RUN_STATE_FINISH_MIGRATE },
352 { RUN_STATE_PRELAUNCH, RUN_STATE_RUNNING },
353 { RUN_STATE_PRELAUNCH, RUN_STATE_FINISH_MIGRATE },
354 { RUN_STATE_PRELAUNCH, RUN_STATE_INMIGRATE },
356 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_RUNNING },
357 { RUN_STATE_FINISH_MIGRATE, RUN_STATE_POSTMIGRATE },
359 { RUN_STATE_RESTORE_VM, RUN_STATE_RUNNING },
361 { RUN_STATE_RUNNING, RUN_STATE_DEBUG },
362 { RUN_STATE_RUNNING, RUN_STATE_INTERNAL_ERROR },
363 { RUN_STATE_RUNNING, RUN_STATE_IO_ERROR },
364 { RUN_STATE_RUNNING, RUN_STATE_PAUSED },
365 { RUN_STATE_RUNNING, RUN_STATE_FINISH_MIGRATE },
366 { RUN_STATE_RUNNING, RUN_STATE_RESTORE_VM },
367 { RUN_STATE_RUNNING, RUN_STATE_SAVE_VM },
368 { RUN_STATE_RUNNING, RUN_STATE_SHUTDOWN },
369 { RUN_STATE_RUNNING, RUN_STATE_WATCHDOG },
371 { RUN_STATE_SAVE_VM, RUN_STATE_RUNNING },
373 { RUN_STATE_SHUTDOWN, RUN_STATE_PAUSED },
374 { RUN_STATE_SHUTDOWN, RUN_STATE_FINISH_MIGRATE },
376 { RUN_STATE_WATCHDOG, RUN_STATE_RUNNING },
377 { RUN_STATE_WATCHDOG, RUN_STATE_FINISH_MIGRATE },
379 { RUN_STATE_MAX, RUN_STATE_MAX },
382 static bool runstate_valid_transitions[RUN_STATE_MAX][RUN_STATE_MAX];
384 bool runstate_check(RunState state)
386 return current_run_state == state;
389 void runstate_init(void)
391 const RunStateTransition *p;
393 memset(&runstate_valid_transitions, 0, sizeof(runstate_valid_transitions));
395 for (p = &runstate_transitions_def[0]; p->from != RUN_STATE_MAX; p++) {
396 runstate_valid_transitions[p->from][p->to] = true;
400 /* This function will abort() on invalid state transitions */
401 void runstate_set(RunState new_state)
403 assert(new_state < RUN_STATE_MAX);
405 if (!runstate_valid_transitions[current_run_state][new_state]) {
406 fprintf(stderr, "ERROR: invalid runstate transition: '%s' -> '%s'\n",
407 RunState_lookup[current_run_state],
408 RunState_lookup[new_state]);
412 current_run_state = new_state;
415 int runstate_is_running(void)
417 return runstate_check(RUN_STATE_RUNNING);
420 StatusInfo *qmp_query_status(Error **errp)
422 StatusInfo *info = g_malloc0(sizeof(*info));
424 info->running = runstate_is_running();
425 info->singlestep = singlestep;
426 info->status = current_run_state;
431 /***********************************************************/
432 /* real time host monotonic timer */
434 /***********************************************************/
435 /* host time/date access */
436 void qemu_get_timedate(struct tm *tm, int offset)
443 if (rtc_date_offset == -1) {
447 ret = localtime(&ti);
449 ti -= rtc_date_offset;
453 memcpy(tm, ret, sizeof(struct tm));
456 int qemu_timedate_diff(struct tm *tm)
460 if (rtc_date_offset == -1)
462 seconds = mktimegm(tm);
465 tmp.tm_isdst = -1; /* use timezone to figure it out */
466 seconds = mktime(&tmp);
469 seconds = mktimegm(tm) + rtc_date_offset;
471 return seconds - time(NULL);
474 void rtc_change_mon_event(struct tm *tm)
478 data = qobject_from_jsonf("{ 'offset': %d }", qemu_timedate_diff(tm));
479 monitor_protocol_event(QEVENT_RTC_CHANGE, data);
480 qobject_decref(data);
483 static void configure_rtc_date_offset(const char *startdate, int legacy)
485 time_t rtc_start_date;
488 if (!strcmp(startdate, "now") && legacy) {
489 rtc_date_offset = -1;
491 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
499 } else if (sscanf(startdate, "%d-%d-%d",
511 rtc_start_date = mktimegm(&tm);
512 if (rtc_start_date == -1) {
514 fprintf(stderr, "Invalid date format. Valid formats are:\n"
515 "'2006-06-17T16:01:21' or '2006-06-17'\n");
518 rtc_date_offset = time(NULL) - rtc_start_date;
522 static void configure_rtc(QemuOpts *opts)
526 value = qemu_opt_get(opts, "base");
528 if (!strcmp(value, "utc")) {
530 } else if (!strcmp(value, "localtime")) {
533 configure_rtc_date_offset(value, 0);
536 value = qemu_opt_get(opts, "clock");
538 if (!strcmp(value, "host")) {
539 rtc_clock = host_clock;
540 } else if (!strcmp(value, "vm")) {
541 rtc_clock = vm_clock;
543 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
547 value = qemu_opt_get(opts, "driftfix");
549 if (!strcmp(value, "slew")) {
551 } else if (!strcmp(value, "none")) {
554 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
560 /***********************************************************/
561 /* Bluetooth support */
564 static struct HCIInfo *hci_table[MAX_NICS];
566 static struct bt_vlan_s {
567 struct bt_scatternet_s net;
569 struct bt_vlan_s *next;
572 /* find or alloc a new bluetooth "VLAN" */
573 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
575 struct bt_vlan_s **pvlan, *vlan;
576 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
580 vlan = g_malloc0(sizeof(struct bt_vlan_s));
582 pvlan = &first_bt_vlan;
583 while (*pvlan != NULL)
584 pvlan = &(*pvlan)->next;
589 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
593 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
598 static struct HCIInfo null_hci = {
599 .cmd_send = null_hci_send,
600 .sco_send = null_hci_send,
601 .acl_send = null_hci_send,
602 .bdaddr_set = null_hci_addr_set,
605 struct HCIInfo *qemu_next_hci(void)
607 if (cur_hci == nb_hcis)
610 return hci_table[cur_hci++];
613 static struct HCIInfo *hci_init(const char *str)
616 struct bt_scatternet_s *vlan = 0;
618 if (!strcmp(str, "null"))
621 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
623 return bt_host_hci(str[4] ? str + 5 : "hci0");
624 else if (!strncmp(str, "hci", 3)) {
627 if (!strncmp(str + 3, ",vlan=", 6)) {
628 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
633 vlan = qemu_find_bt_vlan(0);
635 return bt_new_hci(vlan);
638 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
643 static int bt_hci_parse(const char *str)
648 if (nb_hcis >= MAX_NICS) {
649 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
662 bdaddr.b[5] = 0x56 + nb_hcis;
663 hci->bdaddr_set(hci, bdaddr.b);
665 hci_table[nb_hcis++] = hci;
670 static void bt_vhci_add(int vlan_id)
672 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
675 fprintf(stderr, "qemu: warning: adding a VHCI to "
676 "an empty scatternet %i\n", vlan_id);
678 bt_vhci_init(bt_new_hci(vlan));
681 static struct bt_device_s *bt_device_add(const char *opt)
683 struct bt_scatternet_s *vlan;
685 char *endp = strstr(opt, ",vlan=");
686 int len = (endp ? endp - opt : strlen(opt)) + 1;
689 pstrcpy(devname, MIN(sizeof(devname), len), opt);
692 vlan_id = strtol(endp + 6, &endp, 0);
694 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
699 vlan = qemu_find_bt_vlan(vlan_id);
702 fprintf(stderr, "qemu: warning: adding a slave device to "
703 "an empty scatternet %i\n", vlan_id);
705 if (!strcmp(devname, "keyboard"))
706 return bt_keyboard_init(vlan);
708 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
712 static int bt_parse(const char *opt)
714 const char *endp, *p;
717 if (strstart(opt, "hci", &endp)) {
718 if (!*endp || *endp == ',') {
720 if (!strstart(endp, ",vlan=", 0))
723 return bt_hci_parse(opt);
725 } else if (strstart(opt, "vhci", &endp)) {
726 if (!*endp || *endp == ',') {
728 if (strstart(endp, ",vlan=", &p)) {
729 vlan = strtol(p, (char **) &endp, 0);
731 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
735 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
744 } else if (strstart(opt, "device:", &endp))
745 return !bt_device_add(endp);
747 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
751 /***********************************************************/
752 /* QEMU Block devices */
754 #define HD_OPTS "media=disk"
755 #define CDROM_OPTS "media=cdrom"
757 #define PFLASH_OPTS ""
761 static int drive_init_func(QemuOpts *opts, void *opaque)
763 int *use_scsi = opaque;
765 return drive_init(opts, *use_scsi) == NULL;
768 static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
770 if (NULL == qemu_opt_get(opts, "snapshot")) {
771 qemu_opt_set(opts, "snapshot", "on");
776 static void default_drive(int enable, int snapshot, int use_scsi,
777 BlockInterfaceType type, int index,
782 if (type == IF_DEFAULT) {
783 type = use_scsi ? IF_SCSI : IF_IDE;
786 if (!enable || drive_get_by_index(type, index)) {
790 opts = drive_add(type, index, NULL, optstr);
792 drive_enable_snapshot(opts, NULL);
794 if (!drive_init(opts, use_scsi)) {
799 void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
801 boot_set_handler = func;
802 boot_set_opaque = opaque;
805 int qemu_boot_set(const char *boot_devices)
807 if (!boot_set_handler) {
810 return boot_set_handler(boot_set_opaque, boot_devices);
813 static void validate_bootdevices(char *devices)
815 /* We just do some generic consistency checks */
819 for (p = devices; *p != '\0'; p++) {
820 /* Allowed boot devices are:
821 * a-b: floppy disk drives
822 * c-f: IDE disk drives
823 * g-m: machine implementation dependent drives
824 * n-p: network devices
825 * It's up to each machine implementation to check if the given boot
826 * devices match the actual hardware implementation and firmware
829 if (*p < 'a' || *p > 'p') {
830 fprintf(stderr, "Invalid boot device '%c'\n", *p);
833 if (bitmap & (1 << (*p - 'a'))) {
834 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
837 bitmap |= 1 << (*p - 'a');
841 static void restore_boot_devices(void *opaque)
843 char *standard_boot_devices = opaque;
844 static int first = 1;
846 /* Restore boot order and remove ourselves after the first boot */
852 qemu_boot_set(standard_boot_devices);
854 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
855 g_free(standard_boot_devices);
858 void add_boot_device_path(int32_t bootindex, DeviceState *dev,
861 FWBootEntry *node, *i;
867 assert(dev != NULL || suffix != NULL);
869 node = g_malloc0(sizeof(FWBootEntry));
870 node->bootindex = bootindex;
871 node->suffix = suffix ? g_strdup(suffix) : NULL;
874 QTAILQ_FOREACH(i, &fw_boot_order, link) {
875 if (i->bootindex == bootindex) {
876 fprintf(stderr, "Two devices with same boot index %d\n", bootindex);
878 } else if (i->bootindex < bootindex) {
881 QTAILQ_INSERT_BEFORE(i, node, link);
884 QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
888 * This function returns null terminated string that consist of new line
889 * separated device paths.
891 * memory pointed by "size" is assigned total length of the array in bytes
894 char *get_boot_devices_list(uint32_t *size)
900 QTAILQ_FOREACH(i, &fw_boot_order, link) {
901 char *devpath = NULL, *bootpath;
905 devpath = qdev_get_fw_dev_path(i->dev);
909 if (i->suffix && devpath) {
910 size_t bootpathlen = strlen(devpath) + strlen(i->suffix) + 1;
912 bootpath = g_malloc(bootpathlen);
913 snprintf(bootpath, bootpathlen, "%s%s", devpath, i->suffix);
915 } else if (devpath) {
919 bootpath = g_strdup(i->suffix);
923 list[total-1] = '\n';
925 len = strlen(bootpath) + 1;
926 list = g_realloc(list, total + len);
927 memcpy(&list[total], bootpath, len);
937 static void numa_add(const char *optarg)
941 unsigned long long value, endvalue;
944 optarg = get_opt_name(option, 128, optarg, ',') + 1;
945 if (!strcmp(option, "node")) {
946 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
947 nodenr = nb_numa_nodes;
949 nodenr = strtoull(option, NULL, 10);
952 if (get_param_value(option, 128, "mem", optarg) == 0) {
953 node_mem[nodenr] = 0;
956 sval = strtosz(option, &endptr);
957 if (sval < 0 || *endptr) {
958 fprintf(stderr, "qemu: invalid numa mem size: %s\n", optarg);
961 node_mem[nodenr] = sval;
963 if (get_param_value(option, 128, "cpus", optarg) == 0) {
964 node_cpumask[nodenr] = 0;
966 value = strtoull(option, &endptr, 10);
969 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
971 if (*endptr == '-') {
972 endvalue = strtoull(endptr+1, &endptr, 10);
973 if (endvalue >= 63) {
976 "only 63 CPUs in NUMA mode supported.\n");
978 value = (2ULL << endvalue) - (1ULL << value);
980 value = 1ULL << value;
983 node_cpumask[nodenr] = value;
990 static void smp_parse(const char *optarg)
992 int smp, sockets = 0, threads = 0, cores = 0;
996 smp = strtoul(optarg, &endptr, 10);
997 if (endptr != optarg) {
998 if (*endptr == ',') {
1002 if (get_param_value(option, 128, "sockets", endptr) != 0)
1003 sockets = strtoull(option, NULL, 10);
1004 if (get_param_value(option, 128, "cores", endptr) != 0)
1005 cores = strtoull(option, NULL, 10);
1006 if (get_param_value(option, 128, "threads", endptr) != 0)
1007 threads = strtoull(option, NULL, 10);
1008 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
1009 max_cpus = strtoull(option, NULL, 10);
1011 /* compute missing values, prefer sockets over cores over threads */
1012 if (smp == 0 || sockets == 0) {
1013 sockets = sockets > 0 ? sockets : 1;
1014 cores = cores > 0 ? cores : 1;
1015 threads = threads > 0 ? threads : 1;
1017 smp = cores * threads * sockets;
1021 threads = threads > 0 ? threads : 1;
1022 cores = smp / (sockets * threads);
1024 threads = smp / (cores * sockets);
1028 smp_cores = cores > 0 ? cores : 1;
1029 smp_threads = threads > 0 ? threads : 1;
1031 max_cpus = smp_cpus;
1034 /***********************************************************/
1037 static int usb_device_add(const char *devname)
1040 USBDevice *dev = NULL;
1045 /* drivers with .usbdevice_name entry in USBDeviceInfo */
1046 dev = usbdevice_create(devname);
1050 /* the other ones */
1051 #ifndef CONFIG_LINUX
1052 /* only the linux version is qdev-ified, usb-bsd still needs this */
1053 if (strstart(devname, "host:", &p)) {
1054 dev = usb_host_device_open(p);
1057 if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
1058 dev = usb_bt_init(devname[2] ? hci_init(p) :
1059 bt_new_hci(qemu_find_bt_vlan(0)));
1070 static int usb_device_del(const char *devname)
1075 if (strstart(devname, "host:", &p))
1076 return usb_host_device_close(p);
1081 p = strchr(devname, '.');
1084 bus_num = strtoul(devname, NULL, 0);
1085 addr = strtoul(p + 1, NULL, 0);
1087 return usb_device_delete_addr(bus_num, addr);
1090 static int usb_parse(const char *cmdline)
1093 r = usb_device_add(cmdline);
1095 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
1100 void do_usb_add(Monitor *mon, const QDict *qdict)
1102 const char *devname = qdict_get_str(qdict, "devname");
1103 if (usb_device_add(devname) < 0) {
1104 error_report("could not add USB device '%s'", devname);
1108 void do_usb_del(Monitor *mon, const QDict *qdict)
1110 const char *devname = qdict_get_str(qdict, "devname");
1111 if (usb_device_del(devname) < 0) {
1112 error_report("could not delete USB device '%s'", devname);
1116 /***********************************************************/
1117 /* PCMCIA/Cardbus */
1119 static struct pcmcia_socket_entry_s {
1120 PCMCIASocket *socket;
1121 struct pcmcia_socket_entry_s *next;
1122 } *pcmcia_sockets = 0;
1124 void pcmcia_socket_register(PCMCIASocket *socket)
1126 struct pcmcia_socket_entry_s *entry;
1128 entry = g_malloc(sizeof(struct pcmcia_socket_entry_s));
1129 entry->socket = socket;
1130 entry->next = pcmcia_sockets;
1131 pcmcia_sockets = entry;
1134 void pcmcia_socket_unregister(PCMCIASocket *socket)
1136 struct pcmcia_socket_entry_s *entry, **ptr;
1138 ptr = &pcmcia_sockets;
1139 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
1140 if (entry->socket == socket) {
1146 void pcmcia_info(Monitor *mon)
1148 struct pcmcia_socket_entry_s *iter;
1150 if (!pcmcia_sockets)
1151 monitor_printf(mon, "No PCMCIA sockets\n");
1153 for (iter = pcmcia_sockets; iter; iter = iter->next)
1154 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
1155 iter->socket->attached ? iter->socket->card_string :
1159 /***********************************************************/
1160 /* machine registration */
1162 static QEMUMachine *first_machine = NULL;
1163 QEMUMachine *current_machine = NULL;
1165 int qemu_register_machine(QEMUMachine *m)
1168 pm = &first_machine;
1176 static QEMUMachine *find_machine(const char *name)
1180 for(m = first_machine; m != NULL; m = m->next) {
1181 if (!strcmp(m->name, name))
1183 if (m->alias && !strcmp(m->alias, name))
1189 static QEMUMachine *find_default_machine(void)
1193 for(m = first_machine; m != NULL; m = m->next) {
1194 if (m->is_default) {
1201 /***********************************************************/
1202 /* main execution loop */
1204 static void gui_update(void *opaque)
1206 uint64_t interval = GUI_REFRESH_INTERVAL;
1207 DisplayState *ds = opaque;
1208 DisplayChangeListener *dcl = ds->listeners;
1212 while (dcl != NULL) {
1213 if (dcl->gui_timer_interval &&
1214 dcl->gui_timer_interval < interval)
1215 interval = dcl->gui_timer_interval;
1218 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock_ms(rt_clock));
1221 struct vm_change_state_entry {
1222 VMChangeStateHandler *cb;
1224 QLIST_ENTRY (vm_change_state_entry) entries;
1227 static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
1229 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
1232 VMChangeStateEntry *e;
1234 e = g_malloc0(sizeof (*e));
1238 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
1242 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
1244 QLIST_REMOVE (e, entries);
1248 void vm_state_notify(int running, RunState state)
1250 VMChangeStateEntry *e;
1252 trace_vm_state_notify(running, state);
1254 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
1255 e->cb(e->opaque, running, state);
1261 if (!runstate_is_running()) {
1263 runstate_set(RUN_STATE_RUNNING);
1264 vm_state_notify(1, RUN_STATE_RUNNING);
1266 monitor_protocol_event(QEVENT_RESUME, NULL);
1270 /* reset/shutdown handler */
1272 typedef struct QEMUResetEntry {
1273 QTAILQ_ENTRY(QEMUResetEntry) entry;
1274 QEMUResetHandler *func;
1278 static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
1279 QTAILQ_HEAD_INITIALIZER(reset_handlers);
1280 static int reset_requested;
1281 static int shutdown_requested, shutdown_signal = -1;
1282 static pid_t shutdown_pid;
1283 static int powerdown_requested;
1284 static int debug_requested;
1285 static RunState vmstop_requested = RUN_STATE_MAX;
1287 int qemu_shutdown_requested_get(void)
1289 return shutdown_requested;
1292 int qemu_reset_requested_get(void)
1294 return reset_requested;
1297 int qemu_shutdown_requested(void)
1299 int r = shutdown_requested;
1300 shutdown_requested = 0;
1304 void qemu_kill_report(void)
1306 if (shutdown_signal != -1) {
1307 fprintf(stderr, "qemu: terminating on signal %d", shutdown_signal);
1308 if (shutdown_pid == 0) {
1309 /* This happens for eg ^C at the terminal, so it's worth
1310 * avoiding printing an odd message in that case.
1312 fputc('\n', stderr);
1314 fprintf(stderr, " from pid " FMT_pid "\n", shutdown_pid);
1316 shutdown_signal = -1;
1320 int qemu_reset_requested(void)
1322 int r = reset_requested;
1323 reset_requested = 0;
1327 int qemu_powerdown_requested(void)
1329 int r = powerdown_requested;
1330 powerdown_requested = 0;
1334 static int qemu_debug_requested(void)
1336 int r = debug_requested;
1337 debug_requested = 0;
1341 /* We use RUN_STATE_MAX but any invalid value will do */
1342 static bool qemu_vmstop_requested(RunState *r)
1344 if (vmstop_requested < RUN_STATE_MAX) {
1345 *r = vmstop_requested;
1346 vmstop_requested = RUN_STATE_MAX;
1353 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1355 QEMUResetEntry *re = g_malloc0(sizeof(QEMUResetEntry));
1358 re->opaque = opaque;
1359 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
1362 void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
1366 QTAILQ_FOREACH(re, &reset_handlers, entry) {
1367 if (re->func == func && re->opaque == opaque) {
1368 QTAILQ_REMOVE(&reset_handlers, re, entry);
1375 void qemu_system_reset(bool report)
1377 QEMUResetEntry *re, *nre;
1379 /* reset all devices */
1380 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
1381 re->func(re->opaque);
1384 monitor_protocol_event(QEVENT_RESET, NULL);
1386 cpu_synchronize_all_post_reset();
1389 void qemu_system_reset_request(void)
1392 shutdown_requested = 1;
1394 reset_requested = 1;
1397 qemu_notify_event();
1400 void qemu_system_killed(int signal, pid_t pid)
1402 shutdown_signal = signal;
1405 qemu_system_shutdown_request();
1408 void qemu_system_shutdown_request(void)
1410 shutdown_requested = 1;
1411 qemu_notify_event();
1414 void qemu_system_powerdown_request(void)
1416 powerdown_requested = 1;
1417 qemu_notify_event();
1420 void qemu_system_debug_request(void)
1422 debug_requested = 1;
1423 qemu_notify_event();
1426 void qemu_system_vmstop_request(RunState state)
1428 vmstop_requested = state;
1429 qemu_notify_event();
1432 qemu_irq qemu_system_powerdown;
1434 static bool main_loop_should_exit(void)
1437 if (qemu_debug_requested()) {
1438 vm_stop(RUN_STATE_DEBUG);
1440 if (qemu_shutdown_requested()) {
1442 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
1444 vm_stop(RUN_STATE_SHUTDOWN);
1449 if (qemu_reset_requested()) {
1451 cpu_synchronize_all_states();
1452 qemu_system_reset(VMRESET_REPORT);
1454 if (runstate_check(RUN_STATE_INTERNAL_ERROR) ||
1455 runstate_check(RUN_STATE_SHUTDOWN)) {
1456 runstate_set(RUN_STATE_PAUSED);
1459 if (qemu_powerdown_requested()) {
1460 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
1461 qemu_irq_raise(qemu_system_powerdown);
1463 if (qemu_vmstop_requested(&r)) {
1469 static void main_loop(void)
1473 #ifdef CONFIG_PROFILER
1477 nonblocking = !kvm_enabled() && last_io > 0;
1478 #ifdef CONFIG_PROFILER
1479 ti = profile_getclock();
1481 last_io = main_loop_wait(nonblocking);
1482 #ifdef CONFIG_PROFILER
1483 dev_time += profile_getclock() - ti;
1485 } while (!main_loop_should_exit());
1488 static void version(void)
1490 printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1493 static void help(int exitcode)
1495 const char *options_help =
1496 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1498 #define DEFHEADING(text) stringify(text) "\n"
1499 #include "qemu-options.def"
1505 printf("usage: %s [options] [disk_image]\n"
1507 "'disk_image' is a raw hard disk image for IDE hard disk 0\n"
1510 "During emulation, the following keys are useful:\n"
1511 "ctrl-alt-f toggle full screen\n"
1512 "ctrl-alt-n switch to virtual console 'n'\n"
1513 "ctrl-alt toggle mouse and keyboard grab\n"
1515 "When using -nographic, press 'ctrl-a h' to get some help.\n",
1521 #define HAS_ARG 0x0001
1523 typedef struct QEMUOption {
1530 static const QEMUOption qemu_options[] = {
1531 { "h", 0, QEMU_OPTION_h, QEMU_ARCH_ALL },
1532 #define DEF(option, opt_arg, opt_enum, opt_help, arch_mask) \
1533 { option, opt_arg, opt_enum, arch_mask },
1534 #define DEFHEADING(text)
1535 #include "qemu-options.def"
1541 static void select_vgahw (const char *p)
1546 vga_interface_type = VGA_NONE;
1547 if (strstart(p, "std", &opts)) {
1548 vga_interface_type = VGA_STD;
1549 } else if (strstart(p, "cirrus", &opts)) {
1550 vga_interface_type = VGA_CIRRUS;
1551 } else if (strstart(p, "vmware", &opts)) {
1552 vga_interface_type = VGA_VMWARE;
1553 } else if (strstart(p, "xenfb", &opts)) {
1554 vga_interface_type = VGA_XENFB;
1555 } else if (strstart(p, "qxl", &opts)) {
1556 vga_interface_type = VGA_QXL;
1557 } else if (!strstart(p, "none", &opts)) {
1559 fprintf(stderr, "Unknown vga type: %s\n", p);
1563 const char *nextopt;
1565 if (strstart(opts, ",retrace=", &nextopt)) {
1567 if (strstart(opts, "dumb", &nextopt))
1568 vga_retrace_method = VGA_RETRACE_DUMB;
1569 else if (strstart(opts, "precise", &nextopt))
1570 vga_retrace_method = VGA_RETRACE_PRECISE;
1571 else goto invalid_vga;
1572 } else goto invalid_vga;
1577 static DisplayType select_display(const char *p)
1580 DisplayType display = DT_DEFAULT;
1582 if (strstart(p, "sdl", &opts)) {
1586 const char *nextopt;
1588 if (strstart(opts, ",frame=", &nextopt)) {
1590 if (strstart(opts, "on", &nextopt)) {
1592 } else if (strstart(opts, "off", &nextopt)) {
1595 goto invalid_sdl_args;
1597 } else if (strstart(opts, ",alt_grab=", &nextopt)) {
1599 if (strstart(opts, "on", &nextopt)) {
1601 } else if (strstart(opts, "off", &nextopt)) {
1604 goto invalid_sdl_args;
1606 } else if (strstart(opts, ",ctrl_grab=", &nextopt)) {
1608 if (strstart(opts, "on", &nextopt)) {
1610 } else if (strstart(opts, "off", &nextopt)) {
1613 goto invalid_sdl_args;
1615 } else if (strstart(opts, ",window_close=", &nextopt)) {
1617 if (strstart(opts, "on", &nextopt)) {
1619 } else if (strstart(opts, "off", &nextopt)) {
1622 goto invalid_sdl_args;
1626 fprintf(stderr, "Invalid SDL option string: %s\n", p);
1632 fprintf(stderr, "SDL support is disabled\n");
1635 } else if (strstart(p, "vnc", &opts)) {
1640 const char *nextopt;
1642 if (strstart(opts, "=", &nextopt)) {
1643 vnc_display = nextopt;
1647 fprintf(stderr, "VNC requires a display argument vnc=<display>\n");
1651 fprintf(stderr, "VNC support is disabled\n");
1654 } else if (strstart(p, "curses", &opts)) {
1655 #ifdef CONFIG_CURSES
1656 display = DT_CURSES;
1658 fprintf(stderr, "Curses support is disabled\n");
1661 } else if (strstart(p, "none", &opts)) {
1664 fprintf(stderr, "Unknown display type: %s\n", p);
1671 static int balloon_parse(const char *arg)
1675 if (strcmp(arg, "none") == 0) {
1679 if (!strncmp(arg, "virtio", 6)) {
1680 if (arg[6] == ',') {
1681 /* have params -> parse them */
1682 opts = qemu_opts_parse(qemu_find_opts("device"), arg+7, 0);
1686 /* create empty opts */
1687 opts = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
1689 qemu_opt_set(opts, "driver", "virtio-balloon");
1696 char *qemu_find_file(int type, const char *name)
1702 /* If name contains path separators then try it as a straight path. */
1703 if ((strchr(name, '/') || strchr(name, '\\'))
1704 && access(name, R_OK) == 0) {
1705 return g_strdup(name);
1708 case QEMU_FILE_TYPE_BIOS:
1711 case QEMU_FILE_TYPE_KEYMAP:
1712 subdir = "keymaps/";
1717 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
1718 buf = g_malloc0(len);
1719 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
1720 if (access(buf, R_OK)) {
1727 static int device_help_func(QemuOpts *opts, void *opaque)
1729 return qdev_device_help(opts);
1732 static int device_init_func(QemuOpts *opts, void *opaque)
1736 dev = qdev_device_add(opts);
1742 static int chardev_init_func(QemuOpts *opts, void *opaque)
1744 CharDriverState *chr;
1746 chr = qemu_chr_new_from_opts(opts, NULL);
1752 #ifdef CONFIG_VIRTFS
1753 static int fsdev_init_func(QemuOpts *opts, void *opaque)
1756 ret = qemu_fsdev_add(opts);
1762 static int mon_init_func(QemuOpts *opts, void *opaque)
1764 CharDriverState *chr;
1765 const char *chardev;
1769 mode = qemu_opt_get(opts, "mode");
1773 if (strcmp(mode, "readline") == 0) {
1774 flags = MONITOR_USE_READLINE;
1775 } else if (strcmp(mode, "control") == 0) {
1776 flags = MONITOR_USE_CONTROL;
1778 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
1782 if (qemu_opt_get_bool(opts, "pretty", 0))
1783 flags |= MONITOR_USE_PRETTY;
1785 if (qemu_opt_get_bool(opts, "default", 0))
1786 flags |= MONITOR_IS_DEFAULT;
1788 chardev = qemu_opt_get(opts, "chardev");
1789 chr = qemu_chr_find(chardev);
1791 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
1795 monitor_init(chr, flags);
1799 static void monitor_parse(const char *optarg, const char *mode)
1801 static int monitor_device_index = 0;
1807 if (strstart(optarg, "chardev:", &p)) {
1808 snprintf(label, sizeof(label), "%s", p);
1810 snprintf(label, sizeof(label), "compat_monitor%d",
1811 monitor_device_index);
1812 if (monitor_device_index == 0) {
1815 opts = qemu_chr_parse_compat(label, optarg);
1817 fprintf(stderr, "parse error: %s\n", optarg);
1822 opts = qemu_opts_create(qemu_find_opts("mon"), label, 1);
1824 fprintf(stderr, "duplicate chardev: %s\n", label);
1827 qemu_opt_set(opts, "mode", mode);
1828 qemu_opt_set(opts, "chardev", label);
1830 qemu_opt_set(opts, "default", "on");
1831 monitor_device_index++;
1834 struct device_config {
1836 DEV_USB, /* -usbdevice */
1838 DEV_SERIAL, /* -serial */
1839 DEV_PARALLEL, /* -parallel */
1840 DEV_VIRTCON, /* -virtioconsole */
1841 DEV_DEBUGCON, /* -debugcon */
1843 const char *cmdline;
1844 QTAILQ_ENTRY(device_config) next;
1846 QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
1848 static void add_device_config(int type, const char *cmdline)
1850 struct device_config *conf;
1852 conf = g_malloc0(sizeof(*conf));
1854 conf->cmdline = cmdline;
1855 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
1858 static int foreach_device_config(int type, int (*func)(const char *cmdline))
1860 struct device_config *conf;
1863 QTAILQ_FOREACH(conf, &device_configs, next) {
1864 if (conf->type != type)
1866 rc = func(conf->cmdline);
1873 static int serial_parse(const char *devname)
1875 static int index = 0;
1878 if (strcmp(devname, "none") == 0)
1880 if (index == MAX_SERIAL_PORTS) {
1881 fprintf(stderr, "qemu: too many serial ports\n");
1884 snprintf(label, sizeof(label), "serial%d", index);
1885 serial_hds[index] = qemu_chr_new(label, devname, NULL);
1886 if (!serial_hds[index]) {
1887 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
1888 devname, strerror(errno));
1895 static int parallel_parse(const char *devname)
1897 static int index = 0;
1900 if (strcmp(devname, "none") == 0)
1902 if (index == MAX_PARALLEL_PORTS) {
1903 fprintf(stderr, "qemu: too many parallel ports\n");
1906 snprintf(label, sizeof(label), "parallel%d", index);
1907 parallel_hds[index] = qemu_chr_new(label, devname, NULL);
1908 if (!parallel_hds[index]) {
1909 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
1910 devname, strerror(errno));
1917 static int virtcon_parse(const char *devname)
1919 QemuOptsList *device = qemu_find_opts("device");
1920 static int index = 0;
1922 QemuOpts *bus_opts, *dev_opts;
1924 if (strcmp(devname, "none") == 0)
1926 if (index == MAX_VIRTIO_CONSOLES) {
1927 fprintf(stderr, "qemu: too many virtio consoles\n");
1931 bus_opts = qemu_opts_create(device, NULL, 0);
1932 qemu_opt_set(bus_opts, "driver", "virtio-serial");
1934 dev_opts = qemu_opts_create(device, NULL, 0);
1935 qemu_opt_set(dev_opts, "driver", "virtconsole");
1937 snprintf(label, sizeof(label), "virtcon%d", index);
1938 virtcon_hds[index] = qemu_chr_new(label, devname, NULL);
1939 if (!virtcon_hds[index]) {
1940 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
1941 devname, strerror(errno));
1944 qemu_opt_set(dev_opts, "chardev", label);
1950 static int debugcon_parse(const char *devname)
1954 if (!qemu_chr_new("debugcon", devname, NULL)) {
1957 opts = qemu_opts_create(qemu_find_opts("device"), "debugcon", 1);
1959 fprintf(stderr, "qemu: already have a debugcon device\n");
1962 qemu_opt_set(opts, "driver", "isa-debugcon");
1963 qemu_opt_set(opts, "chardev", "debugcon");
1967 static QEMUMachine *machine_parse(const char *name)
1969 QEMUMachine *m, *machine = NULL;
1972 machine = find_machine(name);
1977 printf("Supported machines are:\n");
1978 for (m = first_machine; m != NULL; m = m->next) {
1980 printf("%-10s %s (alias of %s)\n", m->alias, m->desc, m->name);
1982 printf("%-10s %s%s\n", m->name, m->desc,
1983 m->is_default ? " (default)" : "");
1985 exit(!name || *name != '?');
1988 static int tcg_init(void)
1990 tcg_exec_init(tcg_tb_size * 1024 * 1024);
1995 const char *opt_name;
1997 int (*available)(void);
2001 { "tcg", "tcg", tcg_available, tcg_init, &tcg_allowed },
2002 { "xen", "Xen", xen_available, xen_init, &xen_allowed },
2003 { "kvm", "KVM", kvm_available, kvm_init, &kvm_allowed },
2006 static int configure_accelerator(void)
2008 const char *p = NULL;
2011 bool accel_initalised = 0;
2012 bool init_failed = 0;
2014 QemuOptsList *list = qemu_find_opts("machine");
2015 if (!QTAILQ_EMPTY(&list->head)) {
2016 p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
2020 /* Use the default "accelerator", tcg */
2024 while (!accel_initalised && *p != '\0') {
2028 p = get_opt_name(buf, sizeof (buf), p, ':');
2029 for (i = 0; i < ARRAY_SIZE(accel_list); i++) {
2030 if (strcmp(accel_list[i].opt_name, buf) == 0) {
2031 *(accel_list[i].allowed) = 1;
2032 ret = accel_list[i].init();
2035 if (!accel_list[i].available()) {
2036 printf("%s not supported for this target\n",
2037 accel_list[i].name);
2039 fprintf(stderr, "failed to initialize %s: %s\n",
2043 *(accel_list[i].allowed) = 0;
2045 accel_initalised = 1;
2050 if (i == ARRAY_SIZE(accel_list)) {
2051 fprintf(stderr, "\"%s\" accelerator does not exist.\n", buf);
2055 if (!accel_initalised) {
2056 fprintf(stderr, "No accelerator found!\n");
2061 fprintf(stderr, "Back to %s accelerator.\n", accel_list[i].name);
2064 return !accel_initalised;
2067 void qemu_add_exit_notifier(Notifier *notify)
2069 notifier_list_add(&exit_notifiers, notify);
2072 void qemu_remove_exit_notifier(Notifier *notify)
2074 notifier_list_remove(&exit_notifiers, notify);
2077 static void qemu_run_exit_notifiers(void)
2079 notifier_list_notify(&exit_notifiers, NULL);
2082 void qemu_add_machine_init_done_notifier(Notifier *notify)
2084 notifier_list_add(&machine_init_done_notifiers, notify);
2087 static void qemu_run_machine_init_done_notifiers(void)
2089 notifier_list_notify(&machine_init_done_notifiers, NULL);
2092 static const QEMUOption *lookup_opt(int argc, char **argv,
2093 const char **poptarg, int *poptind)
2095 const QEMUOption *popt;
2096 int optind = *poptind;
2097 char *r = argv[optind];
2100 loc_set_cmdline(argv, optind, 1);
2102 /* Treat --foo the same as -foo. */
2105 popt = qemu_options;
2108 error_report("invalid option");
2111 if (!strcmp(popt->name, r + 1))
2115 if (popt->flags & HAS_ARG) {
2116 if (optind >= argc) {
2117 error_report("requires an argument");
2120 optarg = argv[optind++];
2121 loc_set_cmdline(argv, optind - 2, 2);
2132 static gpointer malloc_and_trace(gsize n_bytes)
2134 void *ptr = malloc(n_bytes);
2135 trace_g_malloc(n_bytes, ptr);
2139 static gpointer realloc_and_trace(gpointer mem, gsize n_bytes)
2141 void *ptr = realloc(mem, n_bytes);
2142 trace_g_realloc(mem, n_bytes, ptr);
2146 static void free_and_trace(gpointer mem)
2152 int main(int argc, char **argv, char **envp)
2154 const char *gdbstub_dev = NULL;
2156 int snapshot, linux_boot;
2157 const char *icount_option = NULL;
2158 const char *initrd_filename;
2159 const char *kernel_filename, *kernel_cmdline;
2160 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
2162 DisplayChangeListener *dcl;
2163 int cyls, heads, secs, translation;
2164 QemuOpts *hda_opts = NULL, *opts;
2165 QemuOptsList *olist;
2168 const char *loadvm = NULL;
2169 QEMUMachine *machine;
2170 const char *cpu_model;
2171 const char *pid_file = NULL;
2172 const char *incoming = NULL;
2174 int show_vnc_port = 0;
2177 const char *log_mask = NULL;
2178 const char *log_file = NULL;
2179 GMemVTable mem_trace = {
2180 .malloc = malloc_and_trace,
2181 .realloc = realloc_and_trace,
2182 .free = free_and_trace,
2184 const char *trace_events = NULL;
2185 const char *trace_file = NULL;
2187 atexit(qemu_run_exit_notifiers);
2188 error_set_progname(argv[0]);
2190 g_mem_set_vtable(&mem_trace);
2191 if (!g_thread_supported()) {
2192 g_thread_init(NULL);
2198 rtc_clock = host_clock;
2200 qemu_cache_utils_init(envp);
2202 QLIST_INIT (&vm_change_state_head);
2203 os_setup_early_signal_handling();
2205 module_call_init(MODULE_INIT_MACHINE);
2206 machine = find_default_machine();
2208 initrd_filename = NULL;
2211 kernel_filename = NULL;
2212 kernel_cmdline = "";
2213 cyls = heads = secs = 0;
2214 translation = BIOS_ATA_TRANSLATION_AUTO;
2216 for (i = 0; i < MAX_NODES; i++) {
2218 node_cpumask[i] = 0;
2226 /* first pass of option parsing */
2228 while (optind < argc) {
2229 if (argv[optind][0] != '-') {
2234 const QEMUOption *popt;
2236 popt = lookup_opt(argc, argv, &optarg, &optind);
2237 switch (popt->index) {
2238 case QEMU_OPTION_nodefconfig:
2248 ret = qemu_read_config_file(CONFIG_QEMU_CONFDIR "/qemu.conf");
2249 if (ret < 0 && ret != -ENOENT) {
2253 ret = qemu_read_config_file(arch_config_name);
2254 if (ret < 0 && ret != -ENOENT) {
2260 /* second pass of option parsing */
2265 if (argv[optind][0] != '-') {
2266 hda_opts = drive_add(IF_DEFAULT, 0, argv[optind++], HD_OPTS);
2268 const QEMUOption *popt;
2270 popt = lookup_opt(argc, argv, &optarg, &optind);
2271 if (!(popt->arch_mask & arch_type)) {
2272 printf("Option %s not supported for this target\n", popt->name);
2275 switch(popt->index) {
2277 machine = machine_parse(optarg);
2279 case QEMU_OPTION_cpu:
2280 /* hw initialization will check this */
2281 if (*optarg == '?') {
2282 list_cpus(stdout, &fprintf, optarg);
2288 case QEMU_OPTION_initrd:
2289 initrd_filename = optarg;
2291 case QEMU_OPTION_hda:
2295 snprintf(buf, sizeof(buf), "%s", HD_OPTS);
2297 snprintf(buf, sizeof(buf),
2298 "%s,cyls=%d,heads=%d,secs=%d%s",
2299 HD_OPTS , cyls, heads, secs,
2300 translation == BIOS_ATA_TRANSLATION_LBA ?
2302 translation == BIOS_ATA_TRANSLATION_NONE ?
2303 ",trans=none" : "");
2304 drive_add(IF_DEFAULT, 0, optarg, buf);
2307 case QEMU_OPTION_hdb:
2308 case QEMU_OPTION_hdc:
2309 case QEMU_OPTION_hdd:
2310 drive_add(IF_DEFAULT, popt->index - QEMU_OPTION_hda, optarg,
2313 case QEMU_OPTION_drive:
2314 if (drive_def(optarg) == NULL) {
2318 case QEMU_OPTION_set:
2319 if (qemu_set_option(optarg) != 0)
2322 case QEMU_OPTION_global:
2323 if (qemu_global_option(optarg) != 0)
2326 case QEMU_OPTION_mtdblock:
2327 drive_add(IF_MTD, -1, optarg, MTD_OPTS);
2329 case QEMU_OPTION_sd:
2330 drive_add(IF_SD, 0, optarg, SD_OPTS);
2332 case QEMU_OPTION_pflash:
2333 drive_add(IF_PFLASH, -1, optarg, PFLASH_OPTS);
2335 case QEMU_OPTION_snapshot:
2338 case QEMU_OPTION_hdachs:
2342 cyls = strtol(p, (char **)&p, 0);
2343 if (cyls < 1 || cyls > 16383)
2348 heads = strtol(p, (char **)&p, 0);
2349 if (heads < 1 || heads > 16)
2354 secs = strtol(p, (char **)&p, 0);
2355 if (secs < 1 || secs > 63)
2359 if (!strcmp(p, "none"))
2360 translation = BIOS_ATA_TRANSLATION_NONE;
2361 else if (!strcmp(p, "lba"))
2362 translation = BIOS_ATA_TRANSLATION_LBA;
2363 else if (!strcmp(p, "auto"))
2364 translation = BIOS_ATA_TRANSLATION_AUTO;
2367 } else if (*p != '\0') {
2369 fprintf(stderr, "qemu: invalid physical CHS format\n");
2372 if (hda_opts != NULL) {
2374 snprintf(num, sizeof(num), "%d", cyls);
2375 qemu_opt_set(hda_opts, "cyls", num);
2376 snprintf(num, sizeof(num), "%d", heads);
2377 qemu_opt_set(hda_opts, "heads", num);
2378 snprintf(num, sizeof(num), "%d", secs);
2379 qemu_opt_set(hda_opts, "secs", num);
2380 if (translation == BIOS_ATA_TRANSLATION_LBA)
2381 qemu_opt_set(hda_opts, "trans", "lba");
2382 if (translation == BIOS_ATA_TRANSLATION_NONE)
2383 qemu_opt_set(hda_opts, "trans", "none");
2387 case QEMU_OPTION_numa:
2388 if (nb_numa_nodes >= MAX_NODES) {
2389 fprintf(stderr, "qemu: too many NUMA nodes\n");
2394 case QEMU_OPTION_display:
2395 display_type = select_display(optarg);
2397 case QEMU_OPTION_nographic:
2398 display_type = DT_NOGRAPHIC;
2400 case QEMU_OPTION_curses:
2401 #ifdef CONFIG_CURSES
2402 display_type = DT_CURSES;
2404 fprintf(stderr, "Curses support is disabled\n");
2408 case QEMU_OPTION_portrait:
2409 graphic_rotate = 90;
2411 case QEMU_OPTION_rotate:
2412 graphic_rotate = strtol(optarg, (char **) &optarg, 10);
2413 if (graphic_rotate != 0 && graphic_rotate != 90 &&
2414 graphic_rotate != 180 && graphic_rotate != 270) {
2416 "qemu: only 90, 180, 270 deg rotation is available\n");
2420 case QEMU_OPTION_kernel:
2421 kernel_filename = optarg;
2423 case QEMU_OPTION_append:
2424 kernel_cmdline = optarg;
2426 case QEMU_OPTION_cdrom:
2427 drive_add(IF_DEFAULT, 2, optarg, CDROM_OPTS);
2429 case QEMU_OPTION_boot:
2431 static const char * const params[] = {
2432 "order", "once", "menu",
2433 "splash", "splash-time", NULL
2435 char buf[sizeof(boot_devices)];
2436 char *standard_boot_devices;
2439 if (!strchr(optarg, '=')) {
2441 pstrcpy(buf, sizeof(buf), optarg);
2442 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
2444 "qemu: unknown boot parameter '%s' in '%s'\n",
2450 get_param_value(buf, sizeof(buf), "order", optarg)) {
2451 validate_bootdevices(buf);
2452 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2455 if (get_param_value(buf, sizeof(buf),
2457 validate_bootdevices(buf);
2458 standard_boot_devices = g_strdup(boot_devices);
2459 pstrcpy(boot_devices, sizeof(boot_devices), buf);
2460 qemu_register_reset(restore_boot_devices,
2461 standard_boot_devices);
2463 if (get_param_value(buf, sizeof(buf),
2465 if (!strcmp(buf, "on")) {
2467 } else if (!strcmp(buf, "off")) {
2471 "qemu: invalid option value '%s'\n",
2476 qemu_opts_parse(qemu_find_opts("boot-opts"),
2481 case QEMU_OPTION_fda:
2482 case QEMU_OPTION_fdb:
2483 drive_add(IF_FLOPPY, popt->index - QEMU_OPTION_fda,
2486 case QEMU_OPTION_no_fd_bootchk:
2489 case QEMU_OPTION_netdev:
2490 if (net_client_parse(qemu_find_opts("netdev"), optarg) == -1) {
2494 case QEMU_OPTION_net:
2495 if (net_client_parse(qemu_find_opts("net"), optarg) == -1) {
2500 case QEMU_OPTION_tftp:
2501 legacy_tftp_prefix = optarg;
2503 case QEMU_OPTION_bootp:
2504 legacy_bootp_filename = optarg;
2506 case QEMU_OPTION_redir:
2507 if (net_slirp_redir(optarg) < 0)
2511 case QEMU_OPTION_bt:
2512 add_device_config(DEV_BT, optarg);
2514 case QEMU_OPTION_audio_help:
2515 if (!(audio_available())) {
2516 printf("Option %s not supported for this target\n", popt->name);
2522 case QEMU_OPTION_soundhw:
2523 if (!(audio_available())) {
2524 printf("Option %s not supported for this target\n", popt->name);
2527 select_soundhw (optarg);
2532 case QEMU_OPTION_version:
2536 case QEMU_OPTION_m: {
2540 value = strtosz(optarg, &end);
2541 if (value < 0 || *end) {
2542 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
2546 if (value != (uint64_t)(ram_addr_t)value) {
2547 fprintf(stderr, "qemu: ram size too large\n");
2553 case QEMU_OPTION_mempath:
2557 case QEMU_OPTION_mem_prealloc:
2568 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
2570 case QEMU_OPTION_gdb:
2571 gdbstub_dev = optarg;
2576 case QEMU_OPTION_bios:
2579 case QEMU_OPTION_singlestep:
2586 keyboard_layout = optarg;
2588 case QEMU_OPTION_localtime:
2591 case QEMU_OPTION_vga:
2592 select_vgahw (optarg);
2599 w = strtol(p, (char **)&p, 10);
2602 fprintf(stderr, "qemu: invalid resolution or depth\n");
2608 h = strtol(p, (char **)&p, 10);
2613 depth = strtol(p, (char **)&p, 10);
2614 if (depth != 8 && depth != 15 && depth != 16 &&
2615 depth != 24 && depth != 32)
2617 } else if (*p == '\0') {
2618 depth = graphic_depth;
2625 graphic_depth = depth;
2628 case QEMU_OPTION_echr:
2631 term_escape_char = strtol(optarg, &r, 0);
2633 printf("Bad argument to echr\n");
2636 case QEMU_OPTION_monitor:
2637 monitor_parse(optarg, "readline");
2638 default_monitor = 0;
2640 case QEMU_OPTION_qmp:
2641 monitor_parse(optarg, "control");
2642 default_monitor = 0;
2644 case QEMU_OPTION_mon:
2645 opts = qemu_opts_parse(qemu_find_opts("mon"), optarg, 1);
2649 default_monitor = 0;
2651 case QEMU_OPTION_chardev:
2652 opts = qemu_opts_parse(qemu_find_opts("chardev"), optarg, 1);
2657 case QEMU_OPTION_fsdev:
2658 olist = qemu_find_opts("fsdev");
2660 fprintf(stderr, "fsdev is not supported by this qemu build.\n");
2663 opts = qemu_opts_parse(olist, optarg, 1);
2665 fprintf(stderr, "parse error: %s\n", optarg);
2669 case QEMU_OPTION_virtfs: {
2672 const char *writeout;
2674 olist = qemu_find_opts("virtfs");
2676 fprintf(stderr, "virtfs is not supported by this qemu build.\n");
2679 opts = qemu_opts_parse(olist, optarg, 1);
2681 fprintf(stderr, "parse error: %s\n", optarg);
2685 if (qemu_opt_get(opts, "fsdriver") == NULL ||
2686 qemu_opt_get(opts, "mount_tag") == NULL ||
2687 qemu_opt_get(opts, "path") == NULL) {
2688 fprintf(stderr, "Usage: -virtfs fsdriver,path=/share_path/,"
2689 "[security_model={mapped|passthrough|none}],"
2690 "mount_tag=tag.\n");
2693 fsdev = qemu_opts_create(qemu_find_opts("fsdev"),
2694 qemu_opt_get(opts, "mount_tag"), 1);
2696 fprintf(stderr, "duplicate fsdev id: %s\n",
2697 qemu_opt_get(opts, "mount_tag"));
2701 writeout = qemu_opt_get(opts, "writeout");
2703 #ifdef CONFIG_SYNC_FILE_RANGE
2704 qemu_opt_set(fsdev, "writeout", writeout);
2706 fprintf(stderr, "writeout=immediate not supported on "
2711 qemu_opt_set(fsdev, "fsdriver", qemu_opt_get(opts, "fsdriver"));
2712 qemu_opt_set(fsdev, "path", qemu_opt_get(opts, "path"));
2713 qemu_opt_set(fsdev, "security_model",
2714 qemu_opt_get(opts, "security_model"));
2716 qemu_opt_set_bool(fsdev, "readonly",
2717 qemu_opt_get_bool(opts, "readonly", 0));
2718 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
2719 qemu_opt_set(device, "driver", "virtio-9p-pci");
2720 qemu_opt_set(device, "fsdev",
2721 qemu_opt_get(opts, "mount_tag"));
2722 qemu_opt_set(device, "mount_tag",
2723 qemu_opt_get(opts, "mount_tag"));
2726 case QEMU_OPTION_virtfs_synth: {
2730 fsdev = qemu_opts_create(qemu_find_opts("fsdev"), "v_synth", 1);
2732 fprintf(stderr, "duplicate option: %s\n", "virtfs_synth");
2735 qemu_opt_set(fsdev, "fsdriver", "synth");
2736 qemu_opt_set(fsdev, "path", "/"); /* ignored */
2738 device = qemu_opts_create(qemu_find_opts("device"), NULL, 0);
2739 qemu_opt_set(device, "driver", "virtio-9p-pci");
2740 qemu_opt_set(device, "fsdev", "v_synth");
2741 qemu_opt_set(device, "mount_tag", "v_synth");
2744 case QEMU_OPTION_serial:
2745 add_device_config(DEV_SERIAL, optarg);
2747 if (strncmp(optarg, "mon:", 4) == 0) {
2748 default_monitor = 0;
2751 case QEMU_OPTION_watchdog:
2754 "qemu: only one watchdog option may be given\n");
2759 case QEMU_OPTION_watchdog_action:
2760 if (select_watchdog_action(optarg) == -1) {
2761 fprintf(stderr, "Unknown -watchdog-action parameter\n");
2765 case QEMU_OPTION_virtiocon:
2766 add_device_config(DEV_VIRTCON, optarg);
2767 default_virtcon = 0;
2768 if (strncmp(optarg, "mon:", 4) == 0) {
2769 default_monitor = 0;
2772 case QEMU_OPTION_parallel:
2773 add_device_config(DEV_PARALLEL, optarg);
2774 default_parallel = 0;
2775 if (strncmp(optarg, "mon:", 4) == 0) {
2776 default_monitor = 0;
2779 case QEMU_OPTION_debugcon:
2780 add_device_config(DEV_DEBUGCON, optarg);
2782 case QEMU_OPTION_loadvm:
2785 case QEMU_OPTION_full_screen:
2789 case QEMU_OPTION_no_frame:
2792 case QEMU_OPTION_alt_grab:
2795 case QEMU_OPTION_ctrl_grab:
2798 case QEMU_OPTION_no_quit:
2801 case QEMU_OPTION_sdl:
2802 display_type = DT_SDL;
2805 case QEMU_OPTION_no_frame:
2806 case QEMU_OPTION_alt_grab:
2807 case QEMU_OPTION_ctrl_grab:
2808 case QEMU_OPTION_no_quit:
2809 case QEMU_OPTION_sdl:
2810 fprintf(stderr, "SDL support is disabled\n");
2813 case QEMU_OPTION_pidfile:
2816 case QEMU_OPTION_win2k_hack:
2817 win2k_install_hack = 1;
2819 case QEMU_OPTION_rtc_td_hack:
2822 case QEMU_OPTION_acpitable:
2823 do_acpitable_option(optarg);
2825 case QEMU_OPTION_smbios:
2826 do_smbios_option(optarg);
2828 case QEMU_OPTION_enable_kvm:
2829 olist = qemu_find_opts("machine");
2830 qemu_opts_reset(olist);
2831 qemu_opts_parse(olist, "accel=kvm", 0);
2833 case QEMU_OPTION_machine:
2834 olist = qemu_find_opts("machine");
2835 qemu_opts_reset(olist);
2836 opts = qemu_opts_parse(olist, optarg, 1);
2838 fprintf(stderr, "parse error: %s\n", optarg);
2841 optarg = qemu_opt_get(opts, "type");
2843 machine = machine_parse(optarg);
2846 case QEMU_OPTION_usb:
2849 case QEMU_OPTION_usbdevice:
2851 add_device_config(DEV_USB, optarg);
2853 case QEMU_OPTION_device:
2854 if (!qemu_opts_parse(qemu_find_opts("device"), optarg, 1)) {
2858 case QEMU_OPTION_smp:
2861 fprintf(stderr, "Invalid number of CPUs\n");
2864 if (max_cpus < smp_cpus) {
2865 fprintf(stderr, "maxcpus must be equal to or greater than "
2869 if (max_cpus > 255) {
2870 fprintf(stderr, "Unsupported number of maxcpus\n");
2874 case QEMU_OPTION_vnc:
2877 vnc_display = optarg;
2879 fprintf(stderr, "VNC support is disabled\n");
2883 case QEMU_OPTION_no_acpi:
2886 case QEMU_OPTION_no_hpet:
2889 case QEMU_OPTION_balloon:
2890 if (balloon_parse(optarg) < 0) {
2891 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
2895 case QEMU_OPTION_no_reboot:
2898 case QEMU_OPTION_no_shutdown:
2901 case QEMU_OPTION_show_cursor:
2904 case QEMU_OPTION_uuid:
2905 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
2906 fprintf(stderr, "Fail to parse UUID string."
2907 " Wrong format.\n");
2911 case QEMU_OPTION_option_rom:
2912 if (nb_option_roms >= MAX_OPTION_ROMS) {
2913 fprintf(stderr, "Too many option ROMs\n");
2916 opts = qemu_opts_parse(qemu_find_opts("option-rom"), optarg, 1);
2917 option_rom[nb_option_roms].name = qemu_opt_get(opts, "romfile");
2918 option_rom[nb_option_roms].bootindex =
2919 qemu_opt_get_number(opts, "bootindex", -1);
2920 if (!option_rom[nb_option_roms].name) {
2921 fprintf(stderr, "Option ROM file is not specified\n");
2926 case QEMU_OPTION_semihosting:
2927 semihosting_enabled = 1;
2929 case QEMU_OPTION_name:
2930 qemu_name = g_strdup(optarg);
2932 char *p = strchr(qemu_name, ',');
2935 if (strncmp(p, "process=", 8)) {
2936 fprintf(stderr, "Unknown subargument %s to -name\n", p);
2940 os_set_proc_name(p);
2944 case QEMU_OPTION_prom_env:
2945 if (nb_prom_envs >= MAX_PROM_ENVS) {
2946 fprintf(stderr, "Too many prom variables\n");
2949 prom_envs[nb_prom_envs] = optarg;
2952 case QEMU_OPTION_old_param:
2955 case QEMU_OPTION_clock:
2956 configure_alarms(optarg);
2958 case QEMU_OPTION_startdate:
2959 configure_rtc_date_offset(optarg, 1);
2961 case QEMU_OPTION_rtc:
2962 opts = qemu_opts_parse(qemu_find_opts("rtc"), optarg, 0);
2966 configure_rtc(opts);
2968 case QEMU_OPTION_tb_size:
2969 tcg_tb_size = strtol(optarg, NULL, 0);
2970 if (tcg_tb_size < 0) {
2974 case QEMU_OPTION_icount:
2975 icount_option = optarg;
2977 case QEMU_OPTION_incoming:
2980 case QEMU_OPTION_nodefaults:
2982 default_parallel = 0;
2983 default_virtcon = 0;
2984 default_monitor = 0;
2991 case QEMU_OPTION_xen_domid:
2992 if (!(xen_available())) {
2993 printf("Option %s not supported for this target\n", popt->name);
2996 xen_domid = atoi(optarg);
2998 case QEMU_OPTION_xen_create:
2999 if (!(xen_available())) {
3000 printf("Option %s not supported for this target\n", popt->name);
3003 xen_mode = XEN_CREATE;
3005 case QEMU_OPTION_xen_attach:
3006 if (!(xen_available())) {
3007 printf("Option %s not supported for this target\n", popt->name);
3010 xen_mode = XEN_ATTACH;
3012 case QEMU_OPTION_trace:
3014 opts = qemu_opts_parse(qemu_find_opts("trace"), optarg, 0);
3018 trace_events = qemu_opt_get(opts, "events");
3019 trace_file = qemu_opt_get(opts, "file");
3022 case QEMU_OPTION_readconfig:
3024 int ret = qemu_read_config_file(optarg);
3026 fprintf(stderr, "read config %s: %s\n", optarg,
3032 case QEMU_OPTION_spice:
3033 olist = qemu_find_opts("spice");
3035 fprintf(stderr, "spice is not supported by this qemu build.\n");
3038 opts = qemu_opts_parse(olist, optarg, 0);
3040 fprintf(stderr, "parse error: %s\n", optarg);
3044 case QEMU_OPTION_writeconfig:
3047 if (strcmp(optarg, "-") == 0) {
3050 fp = fopen(optarg, "w");
3052 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
3056 qemu_config_write(fp);
3061 os_parse_cmd_args(popt->index, optarg);
3067 /* Open the logfile at this point, if necessary. We can't open the logfile
3068 * when encountering either of the logging options (-d or -D) because the
3069 * other one may be encountered later on the command line, changing the
3070 * location or level of logging.
3074 set_cpu_log_filename(log_file);
3076 set_cpu_log(log_mask);
3079 if (!trace_backend_init(trace_events, trace_file)) {
3083 /* If no data_dir is specified then try to find it relative to the
3086 data_dir = os_find_datadir(argv[0]);
3088 /* If all else fails use the install path specified when building. */
3090 data_dir = CONFIG_QEMU_DATADIR;
3093 if (machine == NULL) {
3094 fprintf(stderr, "No machine found.\n");
3099 * Default to max_cpus = smp_cpus, in case the user doesn't
3100 * specify a max_cpus value.
3103 max_cpus = smp_cpus;
3105 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
3106 if (smp_cpus > machine->max_cpus) {
3107 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
3108 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
3114 * Get the default machine options from the machine if it is not already
3115 * specified either by the configuration file or by the command line.
3117 if (machine->default_machine_opts) {
3118 QemuOptsList *list = qemu_find_opts("machine");
3119 const char *p = NULL;
3121 if (!QTAILQ_EMPTY(&list->head)) {
3122 p = qemu_opt_get(QTAILQ_FIRST(&list->head), "accel");
3125 qemu_opts_reset(list);
3126 opts = qemu_opts_parse(list, machine->default_machine_opts, 0);
3128 fprintf(stderr, "parse error for machine %s: %s\n",
3129 machine->name, machine->default_machine_opts);
3135 qemu_opts_foreach(qemu_find_opts("device"), default_driver_check, NULL, 0);
3136 qemu_opts_foreach(qemu_find_opts("global"), default_driver_check, NULL, 0);
3138 if (machine->no_serial) {
3141 if (machine->no_parallel) {
3142 default_parallel = 0;
3144 if (!machine->use_virtcon) {
3145 default_virtcon = 0;
3147 if (machine->no_vga) {
3150 if (machine->no_floppy) {
3153 if (machine->no_cdrom) {
3156 if (machine->no_sdcard) {
3160 if (display_type == DT_NOGRAPHIC) {
3161 if (default_parallel)
3162 add_device_config(DEV_PARALLEL, "null");
3163 if (default_serial && default_monitor) {
3164 add_device_config(DEV_SERIAL, "mon:stdio");
3165 } else if (default_virtcon && default_monitor) {
3166 add_device_config(DEV_VIRTCON, "mon:stdio");
3169 add_device_config(DEV_SERIAL, "stdio");
3170 if (default_virtcon)
3171 add_device_config(DEV_VIRTCON, "stdio");
3172 if (default_monitor)
3173 monitor_parse("stdio", "readline");
3177 add_device_config(DEV_SERIAL, "vc:80Cx24C");
3178 if (default_parallel)
3179 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
3180 if (default_monitor)
3181 monitor_parse("vc:80Cx24C", "readline");
3182 if (default_virtcon)
3183 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
3186 vga_interface_type = VGA_CIRRUS;
3190 if (qemu_opts_foreach(qemu_find_opts("chardev"), chardev_init_func, NULL, 1) != 0)
3192 #ifdef CONFIG_VIRTFS
3193 if (qemu_opts_foreach(qemu_find_opts("fsdev"), fsdev_init_func, NULL, 1) != 0) {
3200 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
3205 /* init the memory */
3206 if (ram_size == 0) {
3207 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
3210 configure_accelerator();
3212 qemu_init_cpu_loop();
3213 if (qemu_init_main_loop()) {
3214 fprintf(stderr, "qemu_init_main_loop failed\n");
3217 linux_boot = (kernel_filename != NULL);
3219 if (!linux_boot && *kernel_cmdline != '\0') {
3220 fprintf(stderr, "-append only allowed with -kernel option\n");
3224 if (!linux_boot && initrd_filename != NULL) {
3225 fprintf(stderr, "-initrd only allowed with -kernel option\n");
3229 os_set_line_buffering();
3231 if (init_timer_alarm() < 0) {
3232 fprintf(stderr, "could not initialize alarm timer\n");
3236 if (icount_option && (kvm_enabled() || xen_enabled())) {
3237 fprintf(stderr, "-icount is not allowed with kvm or xen\n");
3240 configure_icount(icount_option);
3242 if (net_init_clients() < 0) {
3246 /* init the bluetooth world */
3247 if (foreach_device_config(DEV_BT, bt_parse))
3250 if (!xen_enabled()) {
3251 /* On 32-bit hosts, QEMU is limited by virtual address space */
3252 if (ram_size > (2047 << 20) && HOST_LONG_BITS == 32) {
3253 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
3258 cpu_exec_init_all();
3260 bdrv_init_with_whitelist();
3264 /* open the virtual block devices */
3266 qemu_opts_foreach(qemu_find_opts("drive"), drive_enable_snapshot, NULL, 0);
3267 if (qemu_opts_foreach(qemu_find_opts("drive"), drive_init_func, &machine->use_scsi, 1) != 0)
3270 default_drive(default_cdrom, snapshot, machine->use_scsi,
3271 IF_DEFAULT, 2, CDROM_OPTS);
3272 default_drive(default_floppy, snapshot, machine->use_scsi,
3273 IF_FLOPPY, 0, FD_OPTS);
3274 default_drive(default_sdcard, snapshot, machine->use_scsi,
3277 register_savevm_live(NULL, "ram", 0, 4, NULL, ram_save_live, NULL,
3280 if (nb_numa_nodes > 0) {
3283 if (nb_numa_nodes > MAX_NODES) {
3284 nb_numa_nodes = MAX_NODES;
3287 /* If no memory size if given for any node, assume the default case
3288 * and distribute the available memory equally across all nodes
3290 for (i = 0; i < nb_numa_nodes; i++) {
3291 if (node_mem[i] != 0)
3294 if (i == nb_numa_nodes) {
3295 uint64_t usedmem = 0;
3297 /* On Linux, the each node's border has to be 8MB aligned,
3298 * the final node gets the rest.
3300 for (i = 0; i < nb_numa_nodes - 1; i++) {
3301 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
3302 usedmem += node_mem[i];
3304 node_mem[i] = ram_size - usedmem;
3307 for (i = 0; i < nb_numa_nodes; i++) {
3308 if (node_cpumask[i] != 0)
3311 /* assigning the VCPUs round-robin is easier to implement, guest OSes
3312 * must cope with this anyway, because there are BIOSes out there in
3313 * real machines which also use this scheme.
3315 if (i == nb_numa_nodes) {
3316 for (i = 0; i < smp_cpus; i++) {
3317 node_cpumask[i % nb_numa_nodes] |= 1 << i;
3322 if (qemu_opts_foreach(qemu_find_opts("mon"), mon_init_func, NULL, 1) != 0) {
3326 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
3328 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
3330 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
3332 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
3335 module_call_init(MODULE_INIT_DEVICE);
3337 if (qemu_opts_foreach(qemu_find_opts("device"), device_help_func, NULL, 0) != 0)
3341 i = select_watchdog(watchdog);
3343 exit (i == 1 ? 1 : 0);
3346 if (machine->compat_props) {
3347 qdev_prop_register_global_list(machine->compat_props);
3351 machine->init(ram_size, boot_devices,
3352 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
3354 cpu_synchronize_all_post_init();
3358 current_machine = machine;
3360 /* init USB devices */
3362 if (foreach_device_config(DEV_USB, usb_parse) < 0)
3366 /* init generic devices */
3367 if (qemu_opts_foreach(qemu_find_opts("device"), device_init_func, NULL, 1) != 0)
3370 net_check_clients();
3372 /* just use the first displaystate for the moment */
3373 ds = get_displaystate();
3377 if (display_type == DT_DEFAULT && !display_remote) {
3378 #if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
3379 display_type = DT_SDL;
3380 #elif defined(CONFIG_VNC)
3381 vnc_display = "localhost:0,to=99";
3384 display_type = DT_NONE;
3389 /* init local displays */
3390 switch (display_type) {
3393 #if defined(CONFIG_CURSES)
3395 curses_display_init(ds, full_screen);
3398 #if defined(CONFIG_SDL)
3400 sdl_display_init(ds, full_screen, no_frame);
3402 #elif defined(CONFIG_COCOA)
3404 cocoa_display_init(ds, full_screen);
3411 /* must be after terminal init, SDL library changes signal handlers */
3412 os_setup_signal_handling();
3415 /* init remote displays */
3417 vnc_display_init(ds);
3418 if (vnc_display_open(ds, vnc_display) < 0)
3421 if (show_vnc_port) {
3422 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
3427 if (using_spice && !qxl_enabled) {
3428 qemu_spice_display_init(ds);
3434 dcl = ds->listeners;
3435 while (dcl != NULL) {
3436 if (dcl->dpy_refresh != NULL) {
3437 ds->gui_timer = qemu_new_timer_ms(rt_clock, gui_update, ds);
3438 qemu_mod_timer(ds->gui_timer, qemu_get_clock_ms(rt_clock));
3443 text_consoles_set_display(ds);
3445 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
3446 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
3451 qdev_machine_creation_done();
3453 if (rom_load_all() != 0) {
3454 fprintf(stderr, "rom loading failed\n");
3458 /* TODO: once all bus devices are qdevified, this should be done
3459 * when bus is created by qdev.c */
3460 qemu_register_reset(qbus_reset_all_fn, sysbus_get_default());
3461 qemu_run_machine_init_done_notifiers();
3463 qemu_system_reset(VMRESET_SILENT);
3465 if (load_vmstate(loadvm) < 0) {
3471 runstate_set(RUN_STATE_INMIGRATE);
3472 int ret = qemu_start_incoming_migration(incoming);
3474 fprintf(stderr, "Migration failed. Exit code %s(%d), exiting.\n",
3478 } else if (autostart) {